Solveeit Logo
Login

Question

Chemistry Question on Classification of elements & periodicity in properties

What does the electronic configuration 1s2, 2s2, 2p5, 3s11s^2, \, 2s^2, \, 2p^ 5 , \, 3s^1 indicate ?

A

Ground state of fluorine

B

Excited state of fluorine

C

Excited state of neon.

D

Excited state of the O2− O_2^- ion

Answer

Excited state of neon.

Explanation

Solution

Neon: 1s2, 2s2, 2p61 s^{2}, \,2 s^{2}, \,2 p^{6}

Excited state of Neon can be represented as:

1s2⋅2s2, 2p5,3s11 s^{2} \cdot 2 s^{2},\,2 p^{5}, 3 s^{1}